Marcus Corbin

Marcus Corbin is Artis Corbin's father, or more accurately, genetic original. He is a Human from the Sol system, hailing from an orbiter circling Enceladus.

Pre-series
In his youth Marcus took a posting on Overlook, a lab on the surface of Enceladus. He met and fell in love with Sita, the pilot of his supply shuttle. Marcus eventually invited her in for a date, which broke contamination protocols and got them both fired. Marcus found work in the gene library on the orbiter and married Sita. Shortly after she announced she was pregnant, Sita and her unborn child died in a shuttle accident. Marcus, overcome by grief, took all his savings to Sitch, a modder community, and had himself cloned. He told his family and in-laws that the infant was the result of a one-night stand with a woman on Port Coriol.

The Long Way to a Small, Angry Planet
During a routine screening of the Wayfarer crew by Quelin enforcers, Artis Corbin is discovered to be Marcus' clone. Marcus is arrested and sentenced to 12 standards on Tartarus, a prison asteroid in the Kuiper Belt.